The ThermaCELL unit measures 7.5" long and 1.5" thick, and is 3" wide at the top, 1.5" at the bottom. It weighs a mere 7.1 ounces with a full butane cartridge and is 15 percent narrower at the grip. Ergonomic hand grip designed for a palm fitting grasp to ensure easy transport and use. Matte finish allows hunters to stay concealed in the field . Quiet ON/OFF button helps preserve outdoor tranquility and does not disturb wildlife.

ThermaCELL Mosquito Repellent Appliances are easy to take with you anywhere, and are the most effective area mosquito repellents on the market.
Specifications and Features:
Effective against up to 98% of mosquitoes, black flies, and no-see-ums
Provides protection for a 15 x 15-foot area
Safe to use no open flames or DEET
No smelly lotions, sprays, or oils on your skin
Compact and easy to take along
No smelly lotions, sprays, or oils
Compact, easy-to-carry size
Weighs only 0.7 lbs.
Mosquito repellent operates on a single butane cartridge (included)
The butane heats an insect repellent mat and releases allethrin
Allethrin is a synthetic copy of a natural repellent found in pyrethrum flowers
Four color options: olive, gray, woodlands camo, Realtree APG camo
Olive and Realtree APG camo models available with a quiet on/off turn dial
Includes: 1 reusable Mosquito Repellent Appliance, 1 Butane Cartridge (lasts up to 12 hours), 3 insect repellent mats (each lasts up to 4 hours)
Mosquito Repellent Refills sold separately